The Nag Mundari block spans U+1E4D0–U+1E4FF, 48 codepoints in Plane 1 (Supplementary Multilingual Plane). 42 are assigned in Unicode 16.0; the other 6 are reserved for future characters.
All of its characters belong to the Nag Mundari script.
By general category: 27 other letters (Lo), 10 decimal digits (Nd), 4 non-spacing marks (Mn), 1 modifier letters (Lm).
The first 42 arrived in Unicode 15.0 (2022).
Because it lies outside the BMP, every character here takes four bytes in UTF-8 and a surrogate pair in UTF-16.